To all of you trying to figure this out, I've just finally figured it out.
The game comes with a preloaded save in one of the slots, so first you have to load that save. You need to access a 'base' which can take you to 'My Room'. To do this, you need to press 'Q' and open your map, and from there, look for a room that has a ticket like symbol that has a brown on the inside and gold border. (This is a 'base' ticket, not sure how these work, but you the preloaded save has them already.) Once you get into a part of the map that has one of these tickets, look around for a door until you enter one of these bases. From a base, you can go to My Room, and from there, you can do experiment. Make sure to make a save when you get there, there should be a save crystal near the top.